CN102240862A - Small-diameter deep hole root part sealing and pressure-bearing process for welding large-section copper water jacket - Google Patents
Small-diameter deep hole root part sealing and pressure-bearing process for welding large-section copper water jacket Download PDFInfo
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- CN102240862A CN102240862A CN2011101599609A CN201110159960A CN102240862A CN 102240862 A CN102240862 A CN 102240862A CN 2011101599609 A CN2011101599609 A CN 2011101599609A CN 201110159960 A CN201110159960 A CN 201110159960A CN 102240862 A CN102240862 A CN 102240862A
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Abstract
The invention discloses a small-diameter deep hole root part sealing and pressure-bearing process for welding a large-section copper water jacket, which comprises the following steps: processing a welding process hole of the large-section copper water jacket to obtain an operation part, a screw plug sealing part, a welded sealing part and a plain plug sealing part; placing the large-section copper water jacket into a heat treatment furnace, heating to welding temperature, adopting silicate fibers as a heat insulation layer for wrapping the copper water jacket, and reserving an operation hole; carrying out plain plug sealing operation on the plain plug sealing part with a material which is the same with the copper water jacket, then adopting metal inert-gas welding to perform welded sealing, and finally performing screw plug sealing on the screw plug sealing part; and performing welding through a conductive nozzle tapered sheath arranged at a gun head of a welding gun. By adopting the process disclosed by the invention, the copper water jacket can be effectively and quickly welded, the success rate is higher, and the sealing effect of the process hole completed by welding is good. The invention further provides a conductive nozzle tapered sheath for the gun head of a small-diameter deep hole welding gun, thereby enabling the welding gun to conveniently go deep into the root part of a weld joint and realizing a working angle for 360-degree revolution and traveling between the axial line of a welding wire and a hole reference line.
Description
Technical field
The present invention relates to a kind of Copper Water Jacket welding procedure and a kind of soldering appliance of metallurgical furnace kiln oxygen-enriched top blowing stove, particularly a kind of welding heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology and a kind of Small-deep Hole welding gun rifle head conduction are chewed the taper sheath.
Background technology
In the metallurgical process of super-huge metallurgical furnace kiln oxygen-enriched top blowing stove, the profile of tooth Copper Water Jacket is the core component of reaction tank cooling system, the physicochemical characteristic of profile of tooth Copper Water Jacket itself shows as electric conductivity, thermal diffusivity, with oxidisability and strong ductility, geometrical property is the profile of tooth heavy in section, these have determined welding process requirement very harsh, close with the body of heater infusibility, the easy oxidation of welding process, the large tracts of land welding easily cracks, potential threats such as hydrogen blistering, need veteran personnel operation and success rate lower in the welding process, whether the sealing of water jacket fabrication hole reliably will directly affect the safe operation of oxygen-enriched top blowing stove.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of method simple, safe and reliable a kind of welding heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, and a kind of Small-deep Hole welding gun rifle head conduction is chewed the taper sheath.
For solving above-mentioned technical problem, the present invention adopts following technical scheme:
A kind of welding heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, it is characterized in that: described technology may further comprise the steps:
A, heavy in section Copper Water Jacket welding process hole is processed the stifled sealing of operating portion, plug sealing, welded seal portion, light;
B, with the heavy in section Copper Water Jacket as for being heated to welding temperature in the heat-treatment furnace, adopt silicate fiber to wrap up Copper Water Jacket as heat-insulation layer, the reservation operations hole;
After c, the stifled sealing use of light were carried out the stifled seal operation of light with the Copper Water Jacket identical materials, employing was dissolved utmost point inert gas-shielded arc welding and is carried out welded seal, carries out the plug sealing at the plug sealing at last;
D, welding gun rifle head are provided with conduction and chew the taper sheath and weld.
Preferably, among the described step a successively decrease successively in the aperture of operating portion, plug sealing, welded seal portion, the stifled sealing of light, and wherein the stifled sealing of light is the pyramidal structure of aperture, top greater than bottom part aperture diameter;
Preferably, heat-treatment furnace is selected box type heater or pit furnace for use among the described step b.
A kind of Small-deep Hole welding gun rifle head conduction is chewed the taper sheath, described taper sheath comprises installation portion and taper extension, taper extension bottom is connected with installation portion, and taper extension bottom thickness is greater than installation portion thickness, and taper extension bottom thickness is greater than taper extension top thickness.
Preferably, described taper sheath is a tool set, with welding gun rifle head be detachable structure.
Beneficial effect of the present invention:
Weld and take into account the fastness and the success rate of welding for fear of large tracts of land, the invention provides a kind of welding heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, soldering copper water jacket fast and effectively, and higher success rate is arranged, it is good that the fabrication hole sealing effectiveness is finished in welding.
Characteristics according to the small-bore deep hole, the invention provides a kind of Small-deep Hole welding gun rifle head conduction and chew the taper sheath, be convenient to welding gun and go deep into the root of weld, in limited space, expand the operation sight line, be convenient to observe molten bath shaping situation, realized the operating angle of 360 ° of revolution walkings of welding wire axis and hole datum line.
Description of drawings
Fig. 1 chews taper jacket structure schematic diagram for Small-deep Hole welding gun rifle head conduction of the present invention;
Fig. 2 is the structural representation of heavy in section of the present invention Copper Water Jacket welding process hole.
The specific embodiment
Because the geometry of Copper Water Jacket own, select welding among a small circle, must make the welding operation hole run through Copper Water Jacket, it is just very little to make welding hole itself require, just very little to the operating space that operating personnel leave, a kind of welding provided by the invention heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, this technology as for the Copper Water Jacket root, are operated pad according to the following steps:
A, heavy in section Copper Water Jacket 5 welding process holes being processed the stifled sealing 4 of operating portion 1, plug sealing 2, welded seal portion 3, light, successively decreases successively in the aperture of operating portion 1, plug sealing 2, welded seal portion 3, the stifled sealing 4 of light;
B, with the heavy in section Copper Water Jacket as for being heated to welding temperature in the heat-treatment furnace, adopt silicate fiber to wrap up Copper Water Jacket as heat-insulation layer, the reservation operations hole, heat-treatment furnace is selected box type heater or pit furnace for use;
After c, the stifled sealing use of light were carried out the stifled seal operation of light with the Copper Water Jacket identical materials, employing was dissolved utmost point inert gas-shielded arc welding and is carried out welded seal, carries out the plug sealing at the plug sealing at last;
D, welding gun rifle head are provided with conduction and chew the taper sheath.
The present invention also provides a kind of Small-deep Hole welding gun rifle head conduction to chew the taper sheath, the taper sheath comprises installation portion 7 and taper extension 8, taper extension 8 bottoms are connected with installation portion 7, taper extension 8 bottom thickness are greater than installation portion 7 thickness, taper extension 8 bottom thickness are greater than taper extension 7 top thickness, the taper sheath is a tool set, with welding gun rifle head be detachable structure.
Weld and take into account the fastness and the success rate of welding for fear of large tracts of land, a kind of welding provided by the invention heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, soldering copper water jacket fast and effectively, and higher success rate is arranged, it is good that the fabrication hole sealing effectiveness is finished in welding.
Characteristics according to the small-bore deep hole, the invention provides a kind of Small-deep Hole welding gun rifle head conduction and chew the taper sheath, be convenient to welding gun and go deep into the root of weld, in limited space, expand the operation sight line, be convenient to observe molten bath shaping situation, realized the operating angle of 360 ° of revolution walkings of welding wire axis and hole datum line.
Above-described only is the preferred embodiments of the present invention.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the present invention,, can also make other equivalent modifications and improvement, also should be considered as protection scope of the present invention as the common practise of this area.
Claims (5)
1. one kind is welded heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, and it is characterized in that: described technology may further comprise the steps:
A, heavy in section Copper Water Jacket welding process hole is processed the stifled sealing of operating portion, plug sealing, welded seal portion, light;
B, with the heavy in section Copper Water Jacket as for being heated to welding temperature in the heat-treatment furnace, adopt silicate fiber to wrap up Copper Water Jacket as heat-insulation layer, the reservation operations hole;
After c, the stifled sealing use of light were carried out the stifled seal operation of light with the Copper Water Jacket identical materials, employing was dissolved utmost point inert gas-shielded arc welding and is carried out welded seal, carries out the plug sealing at the plug sealing at last;
D, welding gun rifle head are provided with conduction and chew the taper sheath and weld.
2. a kind of welding according to claim 1 heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, it is characterized in that: among the described step a successively decrease successively in the aperture of operating portion, plug sealing, welded seal portion, the stifled sealing of light, and wherein the stifled sealing of light is the pyramidal structure of aperture, top greater than bottom part aperture diameter.
3. a kind of welding according to claim 1 heavy in section Copper Water Jacket Small-deep Hole root seal and pressure bearing technology, it is characterized in that: heat-treatment furnace is selected box type heater or pit furnace for use among the described step b.
4. a Small-deep Hole welding gun rifle head conduction is chewed the taper sheath, it is characterized in that: described taper sheath comprises installation portion and taper extension, taper extension bottom is connected with installation portion, taper extension bottom thickness is greater than installation portion thickness, and taper extension bottom thickness is greater than taper extension top thickness.
5. a kind of Small-deep Hole welding gun rifle head conduction according to claim 4 is chewed the taper sheath, and it is characterized in that: described taper sheath is a tool set, with welding gun rifle head be detachable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110159960.9A CN102240862B (en) | 2011-06-15 | 2011-06-15 | Small-diameter deep hole root part sealing and pressure-bearing process for welding large-section copper water jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110159960.9A CN102240862B (en) | 2011-06-15 | 2011-06-15 | Small-diameter deep hole root part sealing and pressure-bearing process for welding large-section copper water jacket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102240862A true CN102240862A (en) | 2011-11-16 |
| CN102240862B CN102240862B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110159960.9A Active CN102240862B (en) | 2011-06-15 | 2011-06-15 | Small-diameter deep hole root part sealing and pressure-bearing process for welding large-section copper water jacket |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5715598A (en) * | 1995-12-13 | 1998-02-10 | Westinghouse Electric Corporation | Method for sealing a bare hole defined by a nuclear heat exchanger tubesheet |
| US5895561A (en) * | 1996-01-17 | 1999-04-20 | Kennecott Utah Copper Corporation | Method of sealing cooling blocks using electrodeposited metal |
| WO2001003873A1 (en) * | 1999-07-09 | 2001-01-18 | Outokumpu Oyj | Method for plugging a hole and a cooling element manufactured by said method |
| CN2808925Y (en) * | 2005-08-05 | 2006-08-23 | 石家庄钢铁股份有限公司 | Electric furnace wall oxygen lance fireproof sleeve |
| CN1847409A (en) * | 2006-04-20 | 2006-10-18 | 太原钢铁(集团)有限公司 | Blast furnace carbon bottom cooler and its installation method |
-
2011
- 2011-06-15 CN CN201110159960.9A patent/CN102240862B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5715598A (en) * | 1995-12-13 | 1998-02-10 | Westinghouse Electric Corporation | Method for sealing a bare hole defined by a nuclear heat exchanger tubesheet |
| US5895561A (en) * | 1996-01-17 | 1999-04-20 | Kennecott Utah Copper Corporation | Method of sealing cooling blocks using electrodeposited metal |
| WO2001003873A1 (en) * | 1999-07-09 | 2001-01-18 | Outokumpu Oyj | Method for plugging a hole and a cooling element manufactured by said method |
| CN2808925Y (en) * | 2005-08-05 | 2006-08-23 | 石家庄钢铁股份有限公司 | Electric furnace wall oxygen lance fireproof sleeve |
| CN1847409A (en) * | 2006-04-20 | 2006-10-18 | 太原钢铁(集团)有限公司 | Blast furnace carbon bottom cooler and its installation method |
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| Publication number | Publication date |
|---|---|
| CN102240862B (en) | 2014-09-03 |
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Address after: 737100 Beijing Road, Jinchuan District, Jinchang City, Gansu Province Patentee after: JINCHUAN GROUP Co.,Ltd. Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: Jinchuan Group Co.,Ltd. |
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Effective date of registration: 20230705 Address after: No. 21, Xinhua East Road, Jinchuan District, Jinchang City, Gansu Province, 737100 Patentee after: JINCHUAN GROUP ENGINEERING AND CONSTRUCTION Co.,Ltd. Address before: 737100 Beijing Road, Jinchuan District, Jinchang City, Gansu Province Patentee before: JINCHUAN GROUP Co.,Ltd. |